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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Animals which have only one estrous cycle (ex: dog - fox)






2. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






3. Days which have increasing daylight hours

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4. Sperm production






5. Depository for semen during insemination. where urine leaves the body






6. What makes the milk flow through the mammary glands?






7. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






8. 4-6 days






9. Important 'landmark' during palpation






10. 2 month growth cycle. stored in the epididymis of the bull






11. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






12. Superior genes are _______ to multiply






13. What makes the milk flow through the mammary glands?






14. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






15. When are steers and heifers weaned from bottle feeding?






16. ~305 days (altough often longer due to breeding difficulties)






17. Contains and regulates the temp of the testes for sperm production






18. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






19. (male) pushes the testes outward toward the legs for a cool-down off of the body






20. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






21. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






22. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






23. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells






24. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






25. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)






26. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






27. 16-20 hours






28. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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29. Days which have decreasing daylight hours

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30. (FSH) causes egg to mature in females






31. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)






32. Start of the reproductive tract for the female. located outside of the body






33. 19-23 (21) days






34. Check feet and legs - look for masculine traits in build such as crest and muscling






35. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






36. Animal which has been castrated after puberty






37. 147 days






38. Actual heat cycle (period)






39. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge






40. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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41. 16-20 hours






42. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






43. 114 days






44. Birthing process (termination of gestation)






45. To remove/separate testicles from animal's body before animal reaches puberty






46. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






47. What about the sperm for a bull which has been castrated but still has testicles?






48. 14-19 (17) days






49. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






50. To remove/separate testicles from animal's body before animal reaches puberty







Sorry!:) No result found.

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